Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
lieu tinh » trieu tinh, diep tinh, bien tinh
trang cam » trang cham, trang lam, trang va
cam trong » cam truong, cay trong, nam trong
doc lieu » duoc lieu, doc hieu, du lieu
cong san » cong tac
phan cau » phan dau, phan cac, phan lap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc lieu tinh - hanh trang cam trong cong san ((phan cau) OR (phan tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc lieu tinh - hanh trang cam trong cong san ((phan cau) OR (phan tu))".
• Adding a wildcard symbol may retrieve word variants: doc lieu tinh - hanh trang cam trong cong san ((phan cau) OR (phan tu))*.